Manufacturers often place letters before or after the battery size to designate their factory reorder number. For instance, 13A or R13ZA are both size 13 batteries. Proven under extreme climatic conditions in long term testing. With its superior cell design, this battery is also resistant to leakage and swelling. They come in easy to handle recyclable packaging keeping your zinc air batteries secure, with longer tabs to make them as simple as possible to handle and insert into your hearing aid.

We pride ourselves on offering you the Lowest Price Guarantee. That means you can shop with confidence knowing that when you buy, you are receiving the lowest price on all the latest hearing technology.

Enjoy FREE shipping within the USA when you choose Postal Service as your shipping option at Checkout and receive a FREE ""Battery Buddy"", battery holder keychain when you order a carton or more of batteries.

Trial Packs, Size 13 Hearing Aid Batteries. Seven brands, 44 batteries. This is a great way to sample the size 13 battery from seven different manufacturers. Find the best battery brand for your hearing aid.